False blister beetles

Definition

Common name for beetles of the family Oedemeridae, slender soft-bodied beetles that superficially resemble true blister beetles (Meloidae) but lack the potent defensive cantharidin and possess a different body plan with more parallel-sided elytra and a pronotum that is narrower than the base of the elytra. Adults frequent flowers and moist habitats; larvae typically develop in decaying wood or moist plant debris.

Etymology

From their resemblance to blister beetles (Meloidae) combined with 'false' to indicate they are not members of that family.

Example

The wharf borer Nacerdes melanura, a false blister beetle in the family Oedemeridae, is notable for its larvae tunneling in wet decaying timber, sometimes causing damage to wharf pilings and waterfront structures.

Synonyms

• false blisterbeetles
• oedemerids

Related Terms

• blister beetles
• Meloidae
• Oedemeridae
• wharf borer
• soft-bodied beetles
• flower beetles

Usage Notes

Distinguished from true blister beetles (Meloidae) by body form, larval habitat, and chemistry: Oedemeridae lack cantharidin and instead may produce other defensive compounds. The common name is applied to the entire family, not a single species. Some species are called 'false blister beetles' in vernacular usage while others have more specific common names.